PVP.net

Chat will now store up to 100 messages for up to 10 days between individual friends. (Server side)

Item Sets

Custom item sets are now saved server-side per account.

Promo Helper

From Bronze V to Gold 2 (into Gold 1), if you lose a promotional series, your next attempt at that series will start with 1 win credit.

Losing a Bronze 1 or Silver 1 promotional series can stack win credits up to twice.

Promo Helper's assistance will apply to promotional series that you've previously passed but since been demoted into, again.

Promo Helper bonuses will be reset at the start of the new season.

League of Legends V5.23

General

Experience Bounties

For Reference: Whenever you score a kill on a champion, you gain a percentage of the total experience required for the slain champion to advanced to their next level. This is regardless of their current progress toward the level. As of V5.22, the base percentage is 60% and is modified by 7% per level difference, earning you less experience versus lower levelled champions with a minimum of 20%. When multiple champions are involved, the amount of experience you earn is modified so that you each gain a proportional share (e.g. 50% for a two-man takedown) - although the amount of experience each champion earns is based on their own level differences. For example, it requires 280 experience to go from level 1 to level 2 - scoring a kill one your own at level 1 versus a level 1 enemy would grant you 168 experience.

Quinn's attack is now modified to deal 15 - 100 (based on level)(+ 116% - 150% (based on level) AD) damage instead of 50% AD bonus damage. The change in wording could mean Harrier will now interact with critical strikes and such, as with the damage modifiers on Ashe, Corki and Jinx.

Champion collision buffer removed (Previously 15%.). They can now move closer to other units.

Minion collision buffer increased to 20% model size from 15%. They leave bigger gaps between them to walk through.

Death Timers

Time that game time starts influencing death timers reduced to 10 minutes from 35 minutes.

Modifier to death timer reduced to 0.5% from 2%. Cap remains at 50%.

Maximum modifier is now reached at 60 minutes, changed from at 47.5 minutes.

For Reference: The death timer on Summoner's Rift is 10 to 52.5 seconds, based on your champion level. Starting at 10 minutes, your death timer will increase by 0.5% every 30 seconds up to a maximum modifier of 50%.